Dave's ESL Cafe's Student Discussion Forums

[nawee]

Hello,

Are am/pm supposed to have dots? I have seen many native speakers write "am" and "pm". When we write formal letters, is that acceptable?

Thank you,

Nawee

[CP]

I believe most people either use "a.m. / p.m." in lower case with periods or "AM / PM, A.M. / P.M." in upper case with or without periods.

A.M. stands for ante meridien, P.M. for post meridien.
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